{"product_id":"allen-bradley-1791ds-ib8xob8-guard-i-o-devicenet-safety-module","title":"Allen Bradley 1791DS-IB8XOB8 Guard I\/O DeviceNet Safety Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1791DS-IB8XOB8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperates as a high-integrity Guard I\/O module designed for DeviceNet Safety networks. This distributed I\/O solution provides eight safety-rated sinking inputs and eight safety-rated sourcing outputs, allowing for decentralized safety control across large-scale industrial machinery. By utilizing the DeviceNet Safety protocol, the module transmits safety-critical data over a standard network, reducing wiring complexity while maintaining the highest safety integrity levels. We supply this unit in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econdition to ensure your safety-instrumented systems meet factory-certified performance standards.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1791DS-IB8XOB8 utilizes the following electrical and physical parameters to manage safety loops:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen Bradley (Rockwell Automation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGuard I\/O 1791DS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSafety Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Sinking Inputs (Single-Channel)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSafety Outputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Sourcing Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTest Outputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Sourcing Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNetwork Protocol\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDeviceNet Safety\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Output Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.7 A per point\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Power Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20.4–26.4V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40°C to 70°C (-40°F to 158°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTerminal Wire Size\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24–12 AWG (Solid) \/ 22–16 AWG (Stranded)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe 1791DS-IB8XOB8 solves critical technical challenges in distributed safety architectures:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDecentralized Safety Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module eliminates the need for long, expensive home-run wiring from field safety devices to a central cabinet. By mounting the I\/O closer to the sensors and actuators, you reduce voltage drop and simplify overall system cable management.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtreme Environment Resilience:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports an ultra-wide operating temperature range from -40°C to 70°C. This allows for reliable installation in outdoor enclosures or unconditioned plant environments where standard I\/O hardware would fail.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Pulse Testing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFour dedicated test outputs provide short-circuit and cross-loop monitoring for the safety inputs. The module actively detects wiring faults, ensuring the safety system remains functional and compliant with Category 4 \/ PLe requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Termination Options:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe hardware accommodates a wide range of wire gauges (24 to 12 AWG). The terminals support both solid wire and flexible stranded wire with insulation-covered bar terminals, ensuring secure, vibration-resistant connections in heavy-duty machinery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module on a standard DeviceNet network?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1791DS-IB8XOB8 communicates using the DeviceNet Safety protocol. While it physically sits on a DeviceNet trunk line, you must use a Safety-capable master (such as a GuardLogix controller with a 1756-DNB module) to process the safety-rated data.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the four test outputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese outputs perform \"pulse testing\" on your safety inputs. By connecting your dry-contact safety devices (like E-stops or gate switches) to these test outputs, the module can distinguish between a valid \"open\" signal and a short-circuit to a 24V power source.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this module handle output current?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach of the eight sourcing outputs provides up to 0.7 A. This capacity allows the module to directly drive safety contactors, small solenoid valves, or light towers without the need for interposing relays, provided the total current stays within the I\/O power supply limits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a genuine, factory-sealed unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We guarantee that every 1791DS-IB8XOB8 unit is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e. It ships in its original Allen Bradley packaging with intact factory seals, serial numbers, and quality control documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52793241338165,"sku":"1791DS-IB8XOB8","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1791DS-IB8XOB8.png?v=1777359392","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1791ds-ib8xob8-guard-i-o-devicenet-safety-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}